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FIRMWARE VERSION 1.0.3.74 GXV3175 USER MANUAL Page 48 of 139
Video Rate Control
Frame, TMN8 or GOP. The Default setting is Frame.
TMN8 is good for bandwidths larger than 384kbps
Video Frame Skipping
Skips bad video frames as they are received
The Default setting is No.
I-Frame Reference Only
When enabled, all P frames will only have reference to previous I frames.
This method may improve video quality when the network has heavy packet
loss. It will have modest increase in bandwidth usage. The Default setting is
No.
Packetization-Mode
The packetization mode (0 or 1) for the H.264 video packets. The default
setting is 0.
Redundant P-frame
This setting allows the phone to send redundant P-frames of I frames. When
an I frame is delayed or has packet loss, the redundant P-frames will be
used instead. It may make video phone call less prone to errors and thus
make the video stream more robust towards error propagation, but may
increase bandwidth usage. The default setting is set to No.
Adaptive MB Intra Refresh
This parameter specifies whether Adaptive MB Intra Refresh is used or not.
It may protect most important MBs (macro blocks) subjected to packet loss
and to avoid error propagation. The intra-refresh rate is adapted according
to the video packet loss rate. It may increase bandwidth usage. The default
setting is set to No.
Video Packet Loss Rate
Specifies the video packet loss rate for the Adaptive MB Intra Refresh.
Users can choose from: Less than 5%, Less than 10%, Less than 15%,
Less than 20%, Less than 25%. The default setting is set to Less than 10%.
Advanced Settings/Ring Tone
Call Progress Tones:
Dial Tone
Ring Back Tone
Busy Tone
Reorder Tone
Confirmation Tone
Call-Waiting Tone
PSTN disconnect Tone
Using these settings, users can configure ring or tone frequencies based on
parameters from the local telecom provider. By default, they are set to the
North American standard.
Frequencies should be configured with known values to avoid
uncomfortable high pitch sounds.
Syntax: f1=val,f2=val[,c=on1/off1[-on2/off2[-on3/off3]]];
(Frequencies are in Hz and cadence on and off are in 10ms)
ON is the period of ringing (“On time” in ‘ms’) while OFF is the period of
silence. In order to set a continuous ring, OFF should be zero. Otherwise it
will ring ON ms and a pause of OFF ms and then repeat the pattern. Up to
three cadences are supported.
Default Ring Cadence
This defines the ring cadence for the phone. The default setting is:
48


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